Operating device for dump-car doors.



F. L. IRWIN. OPERATING DEVICE FOR DUMP OAR DOORS.

APPLICATION TILED APR.27,1908.

Patented Dec. 15, 1908 4 SHEETS-SHEET 1.

IN VENTOR. Hunk /rW//7 WITNESSES A TTRNE Y.

APPLICATION FILED APR-27,1908.

Wm R. m0 5% 1 EW am M D 1/ d4 e t k m m m WITNESSES.-

F. L. IRWIN.

OPERATING DEVICE FOR DUMP CAR DOORS.

APPLICATION FILED APR 27, 1908.

906,531 Patented Dec. 15, 1908 4 SHEETS-SHEET 3.

INVENTOR. Hank L //z4 //7.

' TTORNEY.

F. L. IRWIN.

OPERATING DEVICE FOR DUMP GAR DOORS.

APPLICATION FILED APB.27.1908,

906,53 1 Patented Dec. 15, 1908 4 SHEETS-SHEET 4 m #h H11 l 1H WITNESSESIN V EN TOR.

6 BY I UNITE STATES PATENT OFFICE.

FRANK L. IRWIN, OF COLUMBUS, OHIO, ASSIGNOR TO JOSEPH S. RALSJON, OFCOLUMBUS, OHIO.

OPERATING DEVICE FOR DU'MP-CAR DOORS.

Application filed April 27, 1908.

To all whom it may concern:

Be it known that I, Flux Ii L. Inwix. a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Operating Devices forDump-Car Doors, of which the following is a specification.

My invention relates to operating devices for dump car doors and hasespecial a pplication to cars in which the doors are hinged near thelower end of the sides of the car and are adapted to be swung outwardlyaway from the car in order to discharge the lading; in cars of this typethe lading may be discharged outside of the track upon which the car isstationed or is moving, and it is desirable that the lading bedischarged far enough away so that it will not interfere with themovement of the wheels on the track.

My improvement provides for a positive connection between the door andan operating shaft, of such nature that it may be collapsed or drawninto a folding position when the door is closed, in which position italso locks the door against being opened until the shaft is againrotated for that purpose. The device is therefore extensible, and may beconstructed to permit the opening of the door to whatever degreedesired.

In the drawings which are hereto attached and hereby made a part of thisspecification, Figure 1 is a plan view of a portion of a car containingmy improvements; Fig. 2 is a side view of a portion of the carcontaining my improvements; Fig. 3 is an end view of a car showing theshaft operating construction; Fig. 4L is a perspective of my improvementin looking position showing also the manner of mounting the shaft; Fig.5 is a vertical transverse section through the car showing myimprovements in position thereon secured to the door; Fig. 6 shows thedevice locked over the shaft, detached from the car; Fig. 7 shows atake-up device used in connection with my improvement.

In the drawings in which the same numeral indicates the same partthroughout, 1 represents the car body mounted upon the center sillconstruction 2, the bolster construction being shown at 3, formed of theoppositely turned channels 4 and 5 provided with the cover plate 6; oneach side of the car I mount in appropriate hangers an operatingSpecification of Letters Patent.

Patented Dec. 15, 1908.

REISS LIED shaft 7 having the ratchet S at its end, and the lever t)mounted on said shaft 7 for rotating the same. Appropriate pawls 10, lland 12 are provided for the ratchet construction shown at 8, and the dog13 is provided for holding the pawl 10 in contact with the ratchet; thisfeature of the construction is not new and therefore need not bedescribed further.

The doors 1% are provided on opposite sides of the car, and are hingedat 15 to swing laterally; the body of the car or the car box proper ispreferably rectangular in cross section. as clearly appears in Fig. 5,and is provided with the end slope sheets 16. and with the bottom slopesheets 17. by which construction the lading is held constantly againstthe doors If, so that any degree of opening of the doors will tend tocause the lading to discharge, and it being the purpose of a car of thistype to discharge the lading well outside of the track, the doors aremade as shown to swing outwardly in order to open the same.

To control the movements of the doors 1%, I provide the constructionshown very clearly in Figs. 4: and 6, consisting of the rocker arm 18 onthe shaft 7, which, when the door 14 is held in its closed position,will occupy the position shown in Fig. l, but when the door is in itsopen position, the rocker arm 18 will occupy the position shown in Fig.5 in dotted lines. Pivotally secured to the rocker arm at its free endis an extension bar 19, which is also secured to one end of the lockingbar 20; said locking bar secured to the door 11 at 21 in a preferredmanner, and at its other end is bent to form the hook 22. This hookportion of the locking bar is constructed to engage the shaft 7 when thedoor is in its closed position, thereby holding or looking the doorsecurely. NV hen the door is in its open po sition, the locking bar 20occupies the position shown in dotted lines in Fig. After a period ofuse, the door and its operating parts may require some adjustment and tothis end I have provided the turn-buckle 23 shown in Fig. 7, whereby thelocking bar may be lengthened or shortened as required by the conditionsof the operating parts.

Normally my improved locking construction comprises the three partswhich I have designated the rocker arm, the extension bar and thelocking bar, and these parts Serial No. 429,384.

may be made a greater or less length as desired, or other parts may beinserted in the combination to increase the length of the door operatingconstruction; the locking bar is constructed to embrace the shaftdirectly and no shoulder or hub need be provided on the shaft forengagement with the hook portion of the locking bar; neither do I need ashoulder or cam surface on the rocker arm for the purpose of receivingthe hook portion of the locking bar, and therefore my lockingconstruction is simpler and more cheaply constructed than other lockingconstructions in use. It will be noted that the operating shaft 7 is ona higher plane than the point of attachment of the locking bar 20 to thedoor 14, and that the pull on the door is therefore practically in aline at a right angle with the door when closed, whereby I more securelyhold the door in its closed position.

When it is desired to open the door 14, the lever 9 is released, and theshaft 7 is rotated by the pressure of the lading upon the door, therebycarrying the rocker arm 18 with it; the outer end of this rocker armdescribes the arc of a circle, and the exten sion bar 19 at the pointwhere it is connected with the rocker arm, is likewise carried throughthe arc of a circle, and the extension bar is thereby brought into theposition shown in Fi 5 on the right hand side there of, therebypermitting the locking bar 20 to travel outwardly, whereby the door ispermitted to open. In closing the door, the lever 9 is turned to rotatethe shaft 7 in the opposite direction, and the rocker arm be ing carriedtherewith, will draw the extension bar and the locking bar into theclosed or folded position shown in Figs. 4 and 6, so that the hookportion 22 of the locking bar takes over the shaft 7 and is held thereonand the door M is thereby securely locked.

What I claim is:

1. In a dump car having side doors opening outwardly adjacent the bottomthereof, a door operating construction comprising a shaft mountedlongitudinally of said car, a

rocker arm on said shaft, an extension bar pivotally connected to saidrocker arm, and a locking bar pivotally connected with said extensionbar at one end and with a door at its other end, said locking bar beinghook shaped at the end thereof which is connected to said extension bar,whereby said locking bar immediately hooks over said shaft when the dooris drawn to its closed position, to lock said door.

2. In a dump car having side doors opening outwardly adjacent the bottomthereof, a door operating construction comprising a shaft mountedlongitudinally of said car, a rocker arm on said shaft, a locking barconnected with said door at one end and having its opposite end formedinto a hook, an extension bar pivotally connected to said rocker arm andto the inner end of said locking bar, and means for rotating said shaftto draw said locking bar, extension bar and rocker arm into a foldedposition, whereby said door is closed, and said hook on said locking baris brought into immediate engagement with said shaft to lock said door.

3. In a dump car having side doors opening outwardly adjacent the bottomthereof, a door operating construction comprising a shaft mountedlongitudinally of said car, a locking bar connected with said door atone end and having its other end hook shaped, a rocker arm carried 011said shaft, an extension bar connected at one end to said rocker arm andto the other end to the hook shaped end of said locking bar, means forrotating"

